Using whereRaw condition on laravel eager loading with query builder - mysql

Question

We want's to need those complain, which lifetime(created_at - now()) is grater then a complain lifetime(the lifetime amount stored on complain_type table) by eloquent relationship.
01.complain table:
+---+------------+-----------------+
|id | complain_preset_id | created_at |
+---+------------+-----------------+
| 1 | 48 | 3/16/2018 10:30 |
| 2 | 13 | 3/16/2018 10:43 |
| 3 | 12 | 3/16/2018 10:57 |
+---+------------+-----------------+
02. Complain Preset Table:
+---+------------+-----------------+
|id | type_id | created_at |
+---+------------+-----------------+
| 1 | 1 | 3/16/2018 6:29 |
| 2 | 2 | 3/16/2018 6:29 |
| 3 | 3 | 3/16/2018 6:29 |
+---+------------+-----------------+
03. complain type table
+---+------------+
|id | lifetime |
+---+------------+
| 1 | 10 |
| 2 | 36 |
| 3 | 360 |
| 4 | 500 |
+---+------------+
the relation between complain->preset is:
public function preset()
{
return $this->belongsTo(ComplainPreset::class, 'complain_preset_id');
}
the relation between preset->complain is:
public function complains()
{
return $this->hasMany(Complain::class, 'complain_id');
}
AND preset->complain_type:
public function complainType()
{
return $this->belongsTo(ComplainType::class, 'type_id');
}
complain_type->preset:
public function presets()
{
return $this->hasMany(ComplainPreset::class);
}
Their is no direct relationship between complain to complain_type.
Here is our solution eloquent query. but that query doesn't work.
The relation is complain->preset->complain_type
Complain::with(['preset' => function ($q) {
$q->with(['complainType' => function($q2) {
$q2->whereRaw('SUBTIME(NOW(), lifetime) > complains.created_at');
}]);
}])->whereDate('created_at', '=' , Carbon::today());
In line 3, this query didn't get complains.created_at, because this line refer to complain_type table.
On line 3 we need to access complains.created_at.
Is their any eloquent way ?

Answer 1

You can use whereHas():
Complain::whereHas('preset.complainType', function($query) {
$query->whereRaw('SUBTIME(NOW(), lifetime) > complains.created_at');
})->whereDate('complains.created_at', '=', Carbon::today());

Answer 2

We want's to need those complain
You could use join to apply filter using column of main table complains with your indirectly (via complain_preset) related table complain_type
Complain::with('preset')
->join('complain_preset as cs','complains.complain_preset_id','=', 'cs.id')
->join('complain_type as ct','cs.type_id','=', 'ct.id')
->whereRaw('SUBTIME(NOW(), ct.lifetime) > complains.created_at')
->whereDate('complains.created_at', '=' , Carbon::today());